采用MSC/Marc有限元软件对泡沫铝在圆柱形球压头作用下的准静态压痕响应进行了数值模拟,研究泡沫铝在圆柱形球压头作用下的位移场和应力场情况,并与压痕试验结果进行了对比.结果表明:位移场和应力场均主要分布于和压头直径范围相对应的泡沫铝区域内,且分布范围随压痕深度的增大而以压痕为中心向外延伸；泡沫铝变形区形状的模拟结果与试验结果相吻合；压痕模拟结果可以较好地解释泡沫铝在圆柱形球压头作用下的变形机制.
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