THE IOSIPESCU INPLANE SHEAR TEST APPLIED TO COMPOSITES - A NEW APPROACH BASED ON DISPLACEMENT FIELD PROCESSING
THE IOSIPESCU INPLANE SHEAR TEST APPLIED TO COMPOSITES - A NEW APPROACH BASED ON DISPLACEMENT FIELD PROCESSING
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DOI：
10.1016/0266-3538(94)90109-0
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发表时间：
1994-01-01
影响因子：
9.1
通讯作者：
VAUTRIN, A
中科院分区：
文献类型：
--
作者：
GREDIAC, M;PIERRON, F;VAUTRIN, A
提出了一种新的Iosipescu面内剪切试验方法。利用虚功原理，推导出平面内剪切模量与整体外加载荷、几何参数以及纵向和横向位移函数的轮廓积分的关系式。为了验证这一过程，进行了基于有限元计算的数值模拟。对于不同的复合材料和复合材料几何形状，剪切模量的计算结果均优于1%。扰动位移值的数值误差模拟验证了该方法的稳定性和可行性。
A new approach to the Iosipescu in-plane shear test is presented. By using the principle of virtual work, a formula is derived that links the in-plane shear modulus to the global applied load, geometric parameters and a contour integral of a function of the longitudinal and transverse displacements. Numerical simulations based on finite element calculations are performed in order to validate the process. The results in terms of shear moduli are better than 1 % for different composite materials and coupon geometries. A numerical error simulation perturbing the displacement values demonstrates the stability and therefore the viability of the method.