{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"利用有限元软件分析了X-cor夹层结构的剪切强度及<span style=\"color:red\">失效</span>机理，提出了<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>和材料刚度退化规则．明确了X-cor夹层结构的<span style=\"color:red\">失效</span>过程和模式；根据<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>，采用有限元模型中发生刚度退化的单元及其分布模拟<span style=\"color:red\">失效</span>类型及扩展路径，说明了X-cor夹层结构的剪切<span style=\"color:red\">失效</span>机理。结果表明：在剪切载荷下，树脂区首先<span style=\"color:red\">失效</span>，然后是Z-pin拔出面板、Z-pin被剪断及Z-pin屈曲多重<span style=\"color:red\">失效</span>模式并存；有限元分析结果与试验数值吻合较好，说明了<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>和刚度退化规则选择的有效性。","authors":[{"authorName":"党旭丹","id":"f4b6d63c-8232-4477-87d2-7eaecf34ef22","originalAuthorName":"党旭丹"},{"authorName":"史少杰","id":"206a7f7c-f581-42fc-be8e-8675d762c366","originalAuthorName":"史少杰"},{"authorName":"肖军","id":"462e111f-3291-4ece-8a59-8067d7e180a9","originalAuthorName":"肖军"}],"doi":"","fpage":"95","id":"5710a55f-61f9-4a12-bf34-66cafaf9d01a","issue":"8","journal":{"abbrevTitle":"JXGCCL","coverImgSrc":"journal/img/cover/JXGCCL.jpg","id":"45","issnPpub":"1000-3738","publisherId":"JXGCCL","title":"机械工程材料"},"keywords":[{"id":"27ea7a39-6097-4d19-9398-79290799b35b","keyword":"X-cor夹层结构","originalKeyword":"X-cor夹层结构"},{"id":"5a70f969-e4bb-49a7-b20c-f0f61c38a637","keyword":"剪切强度","originalKeyword":"剪切强度"},{"id":"641095d9-dd6e-4fae-9630-a9571ba608ea","keyword":"Z-pin","originalKeyword":"Z-pin"},{"id":"48bc57e2-69e6-4afe-9446-155ae4c2d6df","keyword":"有限元","originalKeyword":"有限元"},{"id":"16846806-bfa6-48f9-9a24-96f3027ebe5f","keyword":"<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>","originalKeyword":"失效判据"},{"id":"00584f42-9a80-434f-be62-65d91684c23f","keyword":"退化规则","originalKeyword":"退化规则"}],"language":"zh","publisherId":"jxgccl201208026","title":"X-cor夹层结构剪切强度的有限元分析","volume":"36","year":"2012"},{"abstractinfo":"利用有限元软件获得了X-Cor夹层结构的应力场,并对其压缩强度进行分析.提出了适合于X-Cor 夹层结构<span style=\"color:red\">失效</span>机理分析的<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>和材料刚度退化规则,明确其<span style=\"color:red\">失效</span>过程和模式.根据<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>,采用有限元模型中发生刚度退化的单元及其分布模拟<span style=\"color:red\">失效</span>的类型及扩展路径,说明X-Cor 夹层结构在压缩载荷下的<span style=\"color:red\">失效</span>机理.有限元研究表明:压缩过程中,树脂区首先<span style=\"color:red\">失效</span>,其次是Z-pin,主要的<span style=\"color:red\">失效</span>模式是Z-pin屈曲<span style=\"color:red\">失效</span>,<span style=\"color:red\">失效</span>单元的扩展路径有一定的分散性.通过有限元分析结果与试验值的比较,数值吻合较好,计算误差为-7.6％ ～9.5％.","authors":[{"authorName":"党旭丹","id":"03df9b9a-54c9-4ecd-9bcc-1eb0c801dbde","originalAuthorName":"党旭丹"},{"authorName":"卫萌","id":"bc160e94-f845-4c69-9bf5-e67d47e7d17d","originalAuthorName":"卫萌"},{"authorName":"张红松","id":"9be015ee-c80a-4df8-abf8-ae83dd940860","originalAuthorName":"张红松"},{"authorName":"肖军","id":"b4a4e632-2d18-4217-82e0-e1b54784a01c","originalAuthorName":"肖军"}],"doi":"10.3969/j.issn.1007-2330.2012.04.005","fpage":"21","id":"e5e66a0b-5822-45d9-b225-96a8ad04954b","issue":"4","journal":{"abbrevTitle":"YHCLGY","coverImgSrc":"journal/img/cover/YHCLGY.jpg","id":"77","issnPpub":"1007-2330","publisherId":"YHCLGY","title":"宇航材料工艺   "},"keywords":[{"id":"d518a0a0-f57c-42e6-8e7f-3037dce83c1b","keyword":"X-Cor 夹层结构","originalKeyword":"X-Cor 夹层结构"},{"id":"084ead8d-bc1c-4389-8898-a88da5387947","keyword":"压缩强度","originalKeyword":"压缩强度"},{"id":"ac68d833-7809-48dd-b72c-553b64789fde","keyword":"Z-pin","originalKeyword":"Z-pin"},{"id":"0a55751c-91ff-45d4-8b46-e1a22e7011ae","keyword":"有限元","originalKeyword":"有限元"},{"id":"3d86dd8f-2a66-49e9-8172-14d0b014856d","keyword":"<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>","originalKeyword":"失效判据"},{"id":"8edacce4-a94b-4bb1-ade9-3f78d277fc19","keyword":"退化规则","originalKeyword":"退化规则"}],"language":"zh","publisherId":"yhclgy201204005","title":"X-Cor夹层结构压缩强度有限元分析","volume":"42","year":"2012"},{"abstractinfo":"从基于小参数渐近展开和摄动方法的均匀化理论出发,给出了求解细观应力的数学表达式.通过有限元方法对三维编织复合材料的细观应力场进行数值模拟,并结合适当的强度准则对拉伸极限强度下单元的<span style=\"color:red\">失效</span>情况进行判断,得出材料强度的一种细观<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>.通过该方法得到的应力计算结果与实验结论基本相符.","authors":[{"authorName":"董纪伟","id":"c492ca64-4a5d-47d7-8c40-30d72906056c","originalAuthorName":"董纪伟"},{"authorName":"孙良新","id":"3ca48bb5-2835-4af4-b098-1cd31ed73c7b","originalAuthorName":"孙良新"},{"authorName":"洪平","id":"5c9a5993-3c9b-4c95-b18e-252b176affaa","originalAuthorName":"洪平"}],"doi":"10.3321/j.issn:1000-3851.2005.06.025","fpage":"139","id":"59b44556-efbc-41c7-8492-4db7515eb11d","issue":"6","journal":{"abbrevTitle":"FHCLXB","coverImgSrc":"journal/img/cover/FHCLXB.jpg","id":"26","issnPpub":"1000-3851","publisherId":"FHCLXB","title":"复合材料学报"},"keywords":[{"id":"494d96db-75dc-4d01-b8f4-c9f1fdb7b236","keyword":"均匀化方法","originalKeyword":"均匀化方法"},{"id":"d7c57280-ec4e-4c09-b7fb-28180c3df70e","keyword":"细观应力","originalKeyword":"细观应力"},{"id":"85c739cd-1e82-4c12-ab89-ead6f5bfea52","keyword":"单胞","originalKeyword":"单胞"},{"id":"23ab6ee0-08ed-42b8-8413-0db1e70c1e39","keyword":"编织复合材料","originalKeyword":"编织复合材料"},{"id":"a9e95fb1-e2d6-4193-b091-b6acee390763","keyword":"<span style=\"color:red\">失效</span><span style=\"color:red\">判据</span>","originalKeyword":"失效判据"}],"language":"zh","publisherId":"fhclxb200506025","title":"基于均匀化理论的三维编织复合材料细观应力数值模拟","volume":"22","year":"2005"},{"abstractinfo":"对多组元复杂体系(尤其是高温合金体系)在凝固过程中形成的通道偏析即黑斑的研究现状进行了评述,包括黑斑的存在方式、影响因素和物理特征等.在此基础上,对黑斑的形成机制、有关黑斑的<span style=\"color:red\">判据</span>及存在的问题进行了探讨.对多元复杂体系黑斑的准确表征及合理<span style=\"color:red\">判据</span>提供研究基础.","authors":[{"authorName":"董建新","id":"cafacf72-73b9-4526-a296-ac5c46c96d91","originalAuthorName":"董建新"},{"authorName":"张麦仓","id":"1823d9f7-76fd-40c1-a350-62e46028c06e","originalAuthorName":"张麦仓"},{"authorName":"曾燕屏","id":"399d1be1-3f12-4611-8743-72dbed0eb87a","originalAuthorName":"曾燕屏"}],"doi":"10.3969/j.issn.1004-244X.2005.01.001","fpage":"1","id":"1221d6a7-f76c-4e7f-854e-9214a970f2ba","issue":"1","journal":{"abbrevTitle":"BQCLKXYGC","coverImgSrc":"journal/img/cover/BQCLKXYGC.jpg","id":"4","issnPpub":"1004-244X","publisherId":"BQCLKXYGC","title":"兵器材料科学与工程   "},"keywords":[{"id":"47a29592-483c-46ea-ac55-fce37ed7c4c9","keyword":"通道偏析","originalKeyword":"通道偏析"},{"id":"6562a35e-5d43-463c-af51-f361fd14326a","keyword":"黑斑","originalKeyword":"黑斑"},{"id":"8547a1e3-8e24-47bf-9e17-93735fcaeebc","keyword":"高温合金","originalKeyword":"高温合金"}],"language":"zh","publisherId":"bqclkxygc200501001","title":"\"黑斑\"形成机理及<span style=\"color:red\">判据</span>","volume":"28","year":"2005"},{"abstractinfo":"最近几年,由于诸多原因,有时在盘环件低倍检验试样面上发现白点裂纹,低倍断口与力学性能检验结果均正常.取试样复验,低倍白点裂纹及断口白亮斑时有时无,裂纹性质难以确认.采用调质断口、缓慢拉伸、金相及蚀坑四种方法对疑白点裂纹的判定方法进行了研究.结果表明:虽然调质断口法能判定白点,但是确认率不高;缓慢拉伸法不仅能判定白点,而且还能表明材料的原始状态且准确性较高;金相法是判定白点缺陷的一种简便方法;蚀坑法能反映白点断裂的晶体学取向关系,是研究白点<span style=\"color:red\">判据</span>的一种辅助手段.","authors":[{"authorName":"陈联满","id":"5371406e-faa8-49a8-a498-42223762b13d","originalAuthorName":"陈联满"}],"doi":"10.3969/j.issn.1000-7571.2004.z2.019","fpage":"541","id":"69a3396f-12bb-4c0a-bb68-b5e1e275bbca","issue":"z2","journal":{"abbrevTitle":"YJFX","coverImgSrc":"journal/img/cover/YJFX.jpg","id":"71","issnPpub":"1000-7571","publisherId":"YJFX","title":"冶金分析   "},"keywords":[{"id":"57251eb8-dccf-49f9-a97b-396b0e593b48","keyword":"<span style=\"color:red\">判据</span>方法","originalKeyword":"判据方法"},{"id":"eae1e6fd-9397-4253-9531-8d02954d0483","keyword":"调质断口","originalKeyword":"调质断口"},{"id":"012fdc18-c809-4d97-881a-d31d87c1b741","keyword":"缓慢拉伸","originalKeyword":"缓慢拉伸"},{"id":"ff58dfc5-afbd-4e6c-8143-3969c7789096","keyword":"金相检验","originalKeyword":"金相检验"},{"id":"2cc5a39e-0db7-467c-b779-5e3e4ed63a6e","keyword":"蚀坑","originalKeyword":"蚀坑"}],"language":"zh","publisherId":"yjfx2004z2019","title":"白点的<span style=\"color:red\">判据</span>方法研究","volume":"24","year":"2004"},{"abstractinfo":"本文在前人的玻璃稳定性<span style=\"color:red\">判据</span>的基础上提出了一种新的玻璃稳定性<span style=\"color:red\">判据</span><EM>k</EM><SUB>D</SUB>（<EM>T</EM>）=<EM>v</EM>·exp（－<EM>E／RT</EM>·<EM>D</EM>），其中<EM>D</EM>＝<EM>T</EM><SUB>c</SUB>（<EM>T</EM><SUB>p</SUB>—<EM>T</EM><SUB>c</SUB>）／<EM>T</EM><SUB>1</SUB>（<EM>T</EM><SUB>1</SUB>-<EM>T</EM><SUB>g</SUB>），<EM>k</EM><SUB>D</SUB>（<EM>T</EM>）越小，玻璃越稳定．此<span style=\"color:red\">判据</span>通过引入修正因子<EM>D</EM>，从而把热力学因素与动力学因素结合起来．此<span style=\"color:red\">判据</span>受升温速率影响较小，能适用于不同的温度值，具有普适性，尤其是当频率因子<EM>V</EM>接近时，此<span style=\"color:red\">判据</span>显示了更大的优越性，能准确地判别玻璃的稳定性，而此时<EM>k</EM>（<EM>T</EM>）或<EM>k</EM><SUB>y</SUB>（<EM>T</EM>）<span style=\"color:red\">判据</span>却不能准确地判别玻璃的稳定性．实验验证了本<span style=\"color:red\">判据</span>的正确性．","authors":[{"authorName":"段仁官","id":"a7427ab3-b619-40f3-85b4-9400b521d97b","originalAuthorName":"段仁官"},{"authorName":"梁开明","id":"267bb2a5-0b0c-4a02-b71d-28a395557556","originalAuthorName":"梁开明"}],"categoryName":"|","doi":"","fpage":"257","id":"2c79ef93-36d9-4ef4-a7c0-3878686bff8e","issue":"3","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"c9f9a600-934b-45d9-8dc2-3cfc914bf167","keyword":"玻璃稳定性","originalKeyword":"玻璃稳定性"},{"id":"08cd6bd1-7127-4abe-bacc-2ed327514c80","keyword":" stable criterion","originalKeyword":" stable criterion"},{"id":"6db4d4d3-90af-481d-9075-de04954085c5","keyword":" <EM>k</EM><SUB>D</SUB>（<EM>T</EM>）","originalKeyword":" <EM>k</EM><SUB>D</SUB>（<EM>T</EM>）"}],"language":"zh","publisherId":"1000-324X_1997_3_17","title":"玻璃稳定性<span style=\"color:red\">判据</span>研究","volume":"12","year":"1997"},{"abstractinfo":"航天器的热平衡试验持续时间长,费用巨大,缩短热平衡试验时间能够有效的缩短航天器开发周期和节约研制费用.在航天器的热平衡试验中温度稳定<span style=\"color:red\">判据</span>给出了结束试验的条件.本文对应用和不应用温度外推结果的两种温度稳定<span style=\"color:red\">判据</span>做了简要介绍,详细比较了应用这两种不同温度稳定<span style=\"color:red\">判据</span>时的试验结果和持续时间.结果表明热平衡试验中温度稳定<span style=\"color:red\">判据</span>应用了温度外推结果后能够在准确获得试验温度的同时缩短试验时间.","authors":[{"authorName":"付仕明","id":"7d590d8c-2db8-4ee7-834a-275738f89dd1","originalAuthorName":"付仕明"},{"authorName":"郄殿福","id":"3baf77b0-08bb-408b-be24-1363cdb95fc8","originalAuthorName":"郄殿福"},{"authorName":"刘锋","id":"46149864-cef6-4254-b002-52d9e846b73d","originalAuthorName":"刘锋"}],"doi":"","fpage":"868","id":"dda7aaa4-cde0-4155-94f8-0ada30a162ea","issue":"5","journal":{"abbrevTitle":"GCRWLXB","coverImgSrc":"journal/img/cover/GCRWLXB.jpg","id":"32","issnPpub":"0253-231X","publisherId":"GCRWLXB","title":"工程热物理学报   "},"keywords":[{"id":"41c3d33b-7c2f-4b42-8e6d-30279979a619","keyword":"航天器","originalKeyword":"航天器"},{"id":"e227ca82-acff-440f-b50a-13fc210a134c","keyword":"试验","originalKeyword":"试验"},{"id":"23e9e561-deec-4999-8c0c-7e0bc45caa48","keyword":"温度","originalKeyword":"温度"},{"id":"a8dd8d23-5311-45a6-8e17-095da47a59be","keyword":"稳定","originalKeyword":"稳定"}],"language":"zh","publisherId":"gcrwlxb200505048","title":"热平衡试验温度稳定<span style=\"color:red\">判据</span>研究","volume":"26","year":"2005"},{"abstractinfo":"对合金宏观偏析(黑斑)研究中出现的各种形式的Rayleigh<span style=\"color:red\">判据</span>及其应用进行了总结.讨论了各种<span style=\"color:red\">判据</span>产生的条件及使用范围.根据Flemings的宏观偏析理论建立了一种考虑凝固界面倾角效应的黑斑通用<span style=\"color:red\">判据</span>,并讨论了该<span style=\"color:red\">判据</span>在特殊条件下的表达式,找出了它与其它<span style=\"color:red\">判据</span>的联系.利用垂直向上和水平定向凝固方法试验检验了这些<span style=\"color:red\">判据</span>的正确性.发现Worster提出的<span style=\"color:red\">判据</span>和Flemings的宏观偏析理论是一致的.凝固速率对黑斑形成的影响大于温度梯度的影响,考虑凝固界面倾角的<span style=\"color:red\">判据</span>能更好的预测黑斑的形成.","authors":[{"authorName":"王玲","id":"3828ecb4-5be8-4a02-a3bd-bc2d8ffd7cbe","originalAuthorName":"王玲"},{"authorName":"董建新","id":"10f1c7e4-12ec-4f48-a59b-b0cb07af96d8","originalAuthorName":"董建新"}],"doi":"10.3969/j.issn.1004-244X.2006.04.018","fpage":"59","id":"91509e94-84c7-4b53-b10b-82994f1dff48","issue":"4","journal":{"abbrevTitle":"BQCLKXYGC","coverImgSrc":"journal/img/cover/BQCLKXYGC.jpg","id":"4","issnPpub":"1004-244X","publisherId":"BQCLKXYGC","title":"兵器材料科学与工程   "},"keywords":[{"id":"df5e534f-326f-465e-adac-3346ba620638","keyword":"黑斑","originalKeyword":"黑斑"},{"id":"5ab4bf86-2a19-4cce-a588-4fcea4384ebd","keyword":"Rayleigh<span style=\"color:red\">判据</span>","originalKeyword":"Rayleigh判据"},{"id":"ac02662d-bcd5-43dd-b54e-cad94acf3bab","keyword":"凝固","originalKeyword":"凝固"},{"id":"719c7a82-94c8-4b53-8dc1-b9c6389f19e0","keyword":"倾角","originalKeyword":"倾角"}],"language":"zh","publisherId":"bqclkxygc200604018","title":"宏观偏析\"黑斑\"形成的Rayleigh<span style=\"color:red\">判据</span>及应用","volume":"29","year":"2006"},{"abstractinfo":"<正> A.持久强度极限用一般机械试验的方法所得到的屈服极限、强度极限等常用来作为估计金属静态强度的制据.但是上述强度的标准在高温长时期使用下来估计金属的强度是不适用的.试验证明,在已知温度和条件下,金属的强度与所加负荷时间的长短有关.因此,在这样情况下,我们所说的金属的持久强度是指金属在一定的使用时期内引起金属断裂的应力.持久强度极限应力(可与屈服强度并称)是金属在高温长期使用下计算零件强度的主要基本<span style=\"color:red\">判据</span>之一.在这种情况下,如果零件的使用时期并不太长,持久强度极限可以很容易的测定,就是把金属样品在使用温度及不同应力条件下进行一系列试验.但是如果金","authors":[{"authorName":"В.С.伊万诺娃","id":"e5a0c343-29ba-4a2e-9602-a329fa6b7eef","originalAuthorName":"В.С.伊万诺娃"},{"authorName":"万晓景","id":"5a194231-bf88-490a-b6e2-560ea77e278d","originalAuthorName":"万晓景"}],"categoryName":"|","doi":"","fpage":"260","id":"f98f2414-7d15-488c-9ed0-bd14319487e1","issue":"4","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[],"language":"zh","publisherId":"0412-1961_1958_4_10","title":"蠕变的<span style=\"color:red\">判据</span>及其测定方法","volume":"3","year":"1958"},{"abstractinfo":"本文通过PRRC 试验,研究了焊接接头防止冷裂纹的临界应力,局部预热附加热应力与预热和后热规范的关系,提出了国产低合金高强钢焊接接头的冷裂敏感系数<span style=\"color:red\">判据</span>,然后在实际工程中对所建立的<span style=\"color:red\">判据</span>进行了验证与应用。","authors":[{"authorName":"张文钺","id":"42073034-b943-43e7-ad5d-23aee1a1daae","originalAuthorName":"张文钺"},{"authorName":"杜随更","id":"6b40ee13-6f43-45c5-965b-e0e055427e11","originalAuthorName":"杜随更"},{"authorName":"陈邦固","id":"d7119cf8-6d50-4c65-9b34-08b11f398441","originalAuthorName":"陈邦固"},{"authorName":"秦伯雄","id":"1e633818-4e3d-4ce3-b400-dbfaa0407f19","originalAuthorName":"秦伯雄"},{"authorName":"许玉环","id":"089b7c94-2773-4122-a84f-52e5d30ee7ef","originalAuthorName":"许玉环"},{"authorName":"杜则裕","id":"6aafad4d-f376-4d53-8ce4-379f248788c3","originalAuthorName":"杜则裕"},{"authorName":"黄金茹","id":"20d63825-5140-4334-8c12-9d0875c381ff","originalAuthorName":"黄金茹"}],"categoryName":"|","doi":"","fpage":"61","id":"94a9b208-379e-4ecd-bf7a-3d02ca8a5f15","issue":"5","journal":{"abbrevTitle":"CLYJXB","coverImgSrc":"journal/img/cover/CLYJXB.jpg","id":"16","issnPpub":"1005-3093","publisherId":"CLYJXB","title":"材料研究学报"},"keywords":[],"language":"zh","publisherId":"1005-3093_1988_5_4","title":"低含金高强钢焊接冷裂<span style=\"color:red\">判据</span>","volume":"2","year":"1988"}],"totalpage":343,"totalrecord":3424}