We proposed a simple and efficient modular single-source surface integral equation (SS-SIE) formulation for electromagnetic analysis of arbitrarily connected penetrable perfectly electrical conductor (PEC) objects in two-dimensional space. In this formulation, equivalent model each object consisting the composite structure is first independently constructed through replacing it by background me...

Pressure vessels are one of the essential industrial tools for high-pressure containments. Catastrophic failure pressure is detrimental to society. It design by selecting high-strength materials and analyzing them beyond working loads ensure safety. Liner less composite cylinders have gained importance in vessel industry owing their high strength-to-weight ratios, corrosion resistance, etc. How...

Abstract Pressure vessels enable liquids and gases to be stored transported safely, finding pervasive use in many industries. These types of structure can manufactured into different shapes from various materials satisfy the requirements their specific applications. Maximum allowable pressure is an important factor that should considered carefully design process. Bend-free vessels, are enabled ...

This study presents a data-driven, probability embedded approach for the failure prediction of IM7/8552 unidirectional carbon fibre reinforced polymer (CFRP) composite materials under biaxial stress states based on micromechanical modelling and artificial neural networks (ANNs). High-fidelity 3D representative volume element (RVE) finite models were used generation points. Fibre friction betwee...

We report a low-voltage and submillisecond-response polymerstabilized hyper-twisted-nematic (HTN) liquid crystal cell with a large dielectric anisotropy host mixture. To correct the measured voltagedependent transmittance, we have to take the voltage shielding effect of the alignment layers into consideration. Both Kerr effect and flexoelectro-optic effect contribute to the observed induced bir...

Magnetism of Tsai-type 1/1 approximants has been extensively investigated for the last decade. The experimental results on are reviewed and magnetic behaviors classified discussed in terms average electron-per-atom (e/a) ratio. paramagnetic Curie-Weiss temperature ?p is found to oscillate a universal manner as function e/a ratio, order systematically changes with variation ?p. In addition, rece...

Recently, Tsai et al. proposed dynamic ID based smart card authentication scheme. This paper demonstrates that Tsai et al.’s scheme fails to provide early wrong password detection, secure password change and protection against insider attack. To overcome, we propose a secure SCAM (Smart Card based Authentication Mechanism) which keeps all previous merits and achieves security and functionality ...

First-ply failure (FPF) of composite thin-walled columns and frames is investigated in the buckled structure. Elastic behavior is assumed during the pre-buckling and buckling states, and along part of the post-buckling equilibrium path. The Tsai-Hill criterion is employed to identify failure of one ply at one specific location. The technique of analysis is based on evaluation of the post-buckli...

This document contains the following full and short papers on cognition and conceptual change from ICCE/ICCAI 2000 (International Conference on Computers in Education/International Conference on Computer-Assisted Instruction): (1) "A Method of Creating Counterexamples by Using Error-Based Simulation" (Tomoya Horiguchi and Tsukasa Hirashima); (2) "An Interactive Game System To Stimulate Word Ass...