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Asymptotic analysis of size dependent fracture strength using boundary effect concept

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Asymptotic analysis of size dependent fracture strength using boundary effect concept
นักวิจัย : Duan, Kai. , Hu, Xiaozhi.
คำค้น : Pure basic research. , 970109 Expanding Knowledge in Engineering. , 091308 Solid Mechanics. , Fracture mechanics. , Strength of materials. , Materials , Size effect -- Boundary effect -- Equivalent crack -- Strength -- Fracture energy
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2551
อ้างอิง : http://hdl.cqu.edu.au/10018/27414 , cqu:4184
ที่มา : Duan, K & Hu, X 2008,"Asymptotic Analysis of Size Dependent Fracture Strength Using Boundary Effect Concept", Advanced Materials Research, vol.41-42, pp.125-133.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Advanced materials research. Switzerland. : Trans Tech Publications , 2008. Vol. 41-42 (2008), p. 125-133 9 pages Refereed 1022-6680 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this paper, the extensively-reported “size effect” phenomena in fracture mechanics tests are explained using the boundary effect concept. It is pointed out that the widely-observed size effect in fracture, including the dependence of the fracture energy on ligament, strength and fracture toughness on crack and/or ligament and the strength of geometrically similar specimens on characteristic size, is in fact, due to the boundary influence on the crack tip damage zone. Furthermore, the recently-developed asymptotic model is used to demonstrate that the dependence of strength on crack and ligament lengths as well as on the characteristic size of geometrically similar specimens is a result of the dominance of the distance of the crack tip to specimen boundaries on the specimen failure mode. To verify further the boundary effect concept, the asymptotic model is also applied to two sets of selected experimental data available in the literature, and the implications are discussed.

บรรณานุกรม :
Duan, Kai. , Hu, Xiaozhi. . (2551). Asymptotic analysis of size dependent fracture strength using boundary effect concept.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. . 2551. "Asymptotic analysis of size dependent fracture strength using boundary effect concept".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. . "Asymptotic analysis of size dependent fracture strength using boundary effect concept."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2551. Print.
Duan, Kai. , Hu, Xiaozhi. . Asymptotic analysis of size dependent fracture strength using boundary effect concept. กรุงเทพมหานคร : Central Queensland University, Australia; 2551.