Fatigue Strength of Laser Welded Joints of PP and PC Components

• 作者: Gabriela Bene?ová Lenka Vin?ová Pavel Hisem Vlastimil Votrubec
• 来源期刊: 力学国际期刊(英文)
• 学科: 医学
• 关键词: FATIGUE Strength WELDED JOINTS LASER Welding REINFORCED Plastics
• 年，卷（期）: lxgjqkyw_2018,（6）
• 页码范围: 219-226
• 页数: 8页
• 分类号: R73

摘要

The paper describes research of fatigue properties of laser welded joints of PP and PC reinforced composites. Welded specimens were tested on dynamic testing machine to obtain data for fatigue strength and fatigue life evaluation. Materials used for testing were PP and PC plastics filled with various amounts of glass fibers. Nine combinations of PP specimens and 6 combinations of PC specimens were welded and loaded on testing machine by fluctuating stress with constant stress ratio. Presented results include fatigue strength of welded joints and also the S-N curves based on experimental data and theory are derived.