منابع مشابه
Initiation and arrest of an interfacial crack in a four-point bend test
This paper describes a framework to study the initiation and arrest of an interfacial crack, using a combination of experiment and computation. We consider a test configuration widely used in the microelectronic industry: a sample of two substrates bonded by a stack of thin films, with a pre-crack in one of the substrates, perpendicularly impinging upon the films. When the sample is loaded to a...
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In this work, XFEM is employed to obtain the stress intensity factors (SIFs) of a semi elliptical part through thickness axial crack. In XFEM, additional functions are employed to enrich the displacement approximation using partition of unity approach. Level set functions are approximated using higher order shape functions in the crack front elements to ensure the accurate modeling of the crack...
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The mode II initiation fracture toughness of wood was measured by the three-point bend endnotched flexure (3ENF) test for various crack lengths, and the dependence of toughness on the crack length was analyzed by the four conventional methods of data reduction : elementary beam theory, Williams end correction method, and two compliance calibration methods. In addition to these methods, the comp...
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The popularity and miniaturization of handheld consumer electronic products such as cell phones, notebook computers, and PDAs has enhanced their probability of being subjected to shock loads; hence making impact reliability study an important area of research. The transition from tin-lead (Sn-Pb) to lead-free (Pb-free) solder has pressed the electronics industry to characterize formulate essent...
متن کاملA Notched Disk Crack Propagation Test for Asphalt Concrete
Cracking is a major distress in asphalt pavement which can lead to premature pavement failures and can cost agencies millions of dollars in maintenance and rehabilitation costs. Even with modern advances in pavement engineering, attempts to quantify and model cracking in asphalt pavements have proved extremely challenging; this is due to the visco-elastic behavior of asphalt concrete and the co...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 1959
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.28.120