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Asymptotic analysis of boundary effects on concrete fracture

หน่วยงาน Central Queensland University, Australia

รายละเอียด

ชื่อเรื่อง : Asymptotic analysis of boundary effects on concrete fracture
นักวิจัย : Duan, Kai. , Hu, Xiaozhi. , Wittmann, F.H. (Folker H.)
คำค้น : Concrete. , Engineering. , Fracture mechanics. , Buidling materials. , Strategic basic research. , 861001 Cement and Concrete Materials. , 090503 Construction Materials. , 091308 Solid Mechanics. , 091599 Interdisciplinary Engineering not elsewhere classified.
หน่วยงาน : Central Queensland University, Australia
ผู้ร่วมงาน : -
ปีพิมพ์ : 2550
อ้างอิง : http://hdl.cqu.edu.au/10018/40319 , cqu:5152
ที่มา : Duan, K, Hu, XZ & Wittmann, FH 2007, 'Asymptotic analysis of boundary effects on concrete fracture', Proceedings of the 6th International Conference on Fracture Mechanics of Concrete and Concrete Structures, Catania,Italy, June 17-22, 2007, pp. 45-53.
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Fracture mechanics of concrete and concrete structures : proceedings of the 6th International conference on Fracture mechanics of concrete and concrete structures, Catania, Italy, 17-22 June 2007. London, UK. : Taylor & Francis, 2007. p. 45-53 9 pages Refereed 9780415440660 , ACQUIRE [electronic resource] : Central Queensland University Institutional Repository.
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

The recently-developed boundary effect concept and associated asymptotic model are used to analyse the various size-dependent fracture behaviours of concrete specimens. It is shown that the dependence of concrete fracture on specimen size, crack and/or ligament length is due to the same mechanism, i.e. the interactions between the crack tip fracture process zone and specimen boundaries. By introducing an equivalent crack AE, all these dimension dependent fracture behaviours become equivalent to a large plate with a small edge crack, and therefore, follow the same relationship of the "net" nominal strength ON versus AE. As a result, the size dependent fracture can be predicted using the data measured on different types of specimens. To demonstrate the flexibility and effectiveness of the asymptotic boundary effect model, three previous experimental results available in the literature are analysed, and excellent agreements are achieved. Furthermore, the implications behind the successful predictions are discussed.

บรรณานุกรม :
Duan, Kai. , Hu, Xiaozhi. , Wittmann, F.H. (Folker H.) . (2550). Asymptotic analysis of boundary effects on concrete fracture.
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, F.H. (Folker H.) . 2550. "Asymptotic analysis of boundary effects on concrete fracture".
    กรุงเทพมหานคร : Central Queensland University, Australia.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, F.H. (Folker H.) . "Asymptotic analysis of boundary effects on concrete fracture."
    กรุงเทพมหานคร : Central Queensland University, Australia, 2550. Print.
Duan, Kai. , Hu, Xiaozhi. , Wittmann, F.H. (Folker H.) . Asymptotic analysis of boundary effects on concrete fracture. กรุงเทพมหานคร : Central Queensland University, Australia; 2550.