Specimen Geometry Effects on Dynamic Crack Propagation

Kazuo Arakawa; Toshio Mada

doi:10.4028/www.scientific.net/KEM.326-328.911

Paper Titles

Diffusion Tensor Imaging in Patients with Thalamic Hemorrhage: Correlations between Diffusion Anisotropy and Motor Recovery
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Impact Path Analysis of Human Body with Three Typical Shooting Postures
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A Computer Simulation Study of Fusion Surgery and Artificial Disc Replacement on the Human Cervical Spine
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Development of Model Cell Based on the Myocardial Cell Experiments and Simulations
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Specimen Geometry Effects on Dynamic Crack Propagation
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The Study of Optimum Shape to Evaluation for Thermal Shock Behavior of Graphite
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Temperature Dependence of Threshold Stress Intensity Factor, K_IH in Zr-2.5Nb Alloy and Its Effect on Temperature Limit for Delayed Hydride Cracking
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Experimental Methods for Three-Dimensional Mixed Mode Fracture
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An Evaluation of Fracture Toughness of Glass-Filled Ceramic Using Notched Specimen
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Specimen Geometry Effects on Dynamic Crack Propagation

Abstract:

Dynamic crack propagation in PMMA was studied using the method of caustics in combination with a Cranz-Schardin type high-speed camera. Three different types of specimen geometries were employed to achieve the crack acceleration, deceleration and re-acceleration process in one fracture event. Dynamic stress intensity factor KID and the crack velocity were evaluated in the course of crack propagation to obtain the relationship between KID and the velocity The effect of crack acceleration and deceleration on the KID -velocity relations was examined.