Engineering Research Equipment Grant: Axial-Torsion Materials Testing System

近年来，对非弹性本构模型发展的研究引起了人们的高度关注。由于发展了改进的模型制定计算设施和更复杂的计算机控制的模型验证测试系统，这项研究成为可能。已获得价值超过200万美元的IBM 4341 Group II CAD/CAM系统；然而，现代本构理论的评估和验证需要多轴计算机控制的测试系统。将购买额外的设备，包括计算机控制的轴向扭转伺服液压材料测试系统。该系统能够在静态或动态条件下施加拉伸、压缩、弯曲或扭转载荷，包括恒幅疲劳和随机和编程载荷。这种能力在现代本构理论的发展和验证中极为重要。

Research into the development of inelastic constitutive models has recently attracted a high degree of interest. This research has been made possible by the development of improved computational facilities for model formulation and more sophisticated computer-controlled testing systems for model verification. An IBM 4341 Group II CAD/CAM system valued in excess of $2 million has been acquired; however, evaluation and verification of modern constitutive theories require multiaxial computer-controlled testing systems. Additional equipment will be purchased, including a computer-controlled, axial-torsion, servohydraulic materials testing system. This system is capable of applying tensile, compressive, bending or torsional loads under static or dynamic conditions, including constant amplitude fatigue and random and programmed loadings. Such capabilities are extremely important in the development and verification of modern constitutive theories.