Drop impact test - mechanics & physics of failure; Drop-impact simulation and experimental verification for spindle fixation of video and audio module;Ductile-brittle transition evaluation of Japanese sword and weld metals using miniaturized impact specimens;Dynamic behavior of high polymers with focus on a macrolon;Dynamic J{sub}R curves of 308 stainless steel weld from instrumented impact test of unprecracked Charpy V-notch specimens;Dynamic mechanical analysis and toughening mechanisms of polycarbonate and 4,4'-dihydorxydiphenyl copolycarbonate;……