複合疊層板材板金成形之界面層失效模擬分析及測試方法國際技術現況

International Technology Status of Simulation Analysis and Test Method for the Failure of the Interface Layer of Composite Laminated Sheet Metal Forming

胡秉淳

《機械工業雜誌》 465期 (2021/12) Pp. 56-62

摘要

纖維與金屬複合疊層板（Fiber metal laminate，FML）是同時利用金屬結構強度與複合材料輕量化等材料優勢的混合材料，以各取所長的概念依據產品的需求，設計疊層方式及材料的選用。本文為探討疊層板之層間界面性質。導入斷裂力學理論，探討黏合區裂紋成長及分離時之數值分析與模擬建模方案，包含層間張力引起的Mode I、層間滑動剪切產生的Mode II與兩者合併的混合模式等，以及該模式所適用之機械性質測試模式與規範。並討論有線元素模型中，層間元素與節點設定之模式，藉此預估層間界面的失效模式（脫離、分層）。建立適用於複合層板的模擬軟體環境設定模式與測試方法，提供未來疊層板產品設計與板金成形之重要參考依據。

關鍵字

複合層板 ； 模式一／二 ； 雙線牽引分離定律

並列摘要

Fiber metal laminate (FML) is a hybrid material that simultaneously utilizes the strength of metal structure and the lightweight of composite materials. Stacking design and material selection are determined by the required strength of the products. In order to discuss the interlayer interface properties of laminated boards, this article introduces the theory of fracture mechanics to carry out the numerical analysis and simulation modeling schemes on crack growth and separation in the bonding zone, including Mode I caused by interlayer tension, Mode II caused by interlayer sliding shear, the combined mixed mode of Mode I and Mode II, and corresponding mechanical properties test mode and specifications. The mode of inter-layer element and node configuration in Finite Element Analysis are also discussed to estimate the failure mode (detachment, delamination) of the interlayer interface. Simulation configuration for composite laminates has been developed to provide an important reference for future laminate product design and sheet metal forming.

並列關鍵字

Composite laminate ； Mode I / II ； Bi-linear traction-separation law