Analysis of Geometric Effects on Stress Wave Propagation in Epoxy Resins of Plate-Like Structure by Dynamic Photoelasticity Combined with Strain Gauge
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概要
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Experimental studies have been conducted using the dynamic photoelastic technique combined with a strain gauge to investigate geometric effects on stress wave propagation in axially impacted epoxy resins of plate-like structure. Dynamic photoelasticity provides a means of visualizing the stress wave field inside a solid. A device that triggers the generation of stress waves by direct projectile impact is used to conduct high-speed photoelasticity and strain gauge measurements. This triggering is achieved by an electrical connection between projectile and sample. The geometric effects of the width-to-wavelength ratio on the propagation speed and attenuation coefficient of stress waves were analyzed for isotropic rectangular rods of different width-to-thickness ratios, the thickness being the same in each case. The experimental results for stress wave speed as a function of width-to-wavelength ratio are in reasonable agreement with theoretical predictions based on a modified Love’s equation involving the geometric effects due to lateral inertia.
- 2008-06-25
著者
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Hashimoto Shozo
High-tech Research Center Saitama Institute Of Technology
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Hayasi Ryoei
Faculty Of Engineering Saitama Institute Of Technology
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Masuda Yoshiharu
High-tech Research Center Saitama Institute Of Technology
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Hayasi Ryoei
Faculty of Engineering, Saitama Institute of Technology, Fukaya, Saitama 369-0293, Japan
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Kuriyama Shinhou
Faculty of Engineering, Saitama Institute of Technology, Fukaya, Saitama 369-0293, Japan
関連論文
- Analysis of Geometric Effects on Stress Wave Propagation in Epoxy Resins of Plate-Like Structure by Dynamic Photoelasticity Combined with Strain Gauge
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