首页>
外国专利>
Portable device for testing the shear response of a material in response to a repetitive applied force
Portable device for testing the shear response of a material in response to a repetitive applied force
展开▼
机译:便携式设备,用于测试材料对重复施加的力的剪切响应
展开▼
页面导航
摘要
著录项
相似文献
摘要
A portable device for measuring the shear properties of a material specimen under applied dynamic circumferential forces against the specimen perpendicular to a longitudinal axis of said specimen. The device may further apply a dynamic force against an end of the specimen. The device includes clamps that hold the specimen at its proximal and distal end, wherein the circumferential force applied to the specimen is affectively applied between the two clamps. The temperature of the specimen may be held constant by controlling the temperature within an environmental chamber through the use of a closed loop PID control system. The force against the specimen is dynamically loaded by a dynamic load reaction frame consisting of a shear load actuator and load reaction structure. A microprocessor-based controller operates the dynamic load reaction frame under closed loop control. The microprocessor-based controller may be servo controlled, utilizing feedback from either a load transducer or either or both of two linear displacement transducers.
展开▼