信息检索jwq

The rearch for the application of automobile exhaust valve alternative materials
Li, Xian-Min1唯美英语短句; Yang, Yuan-Lei1 Source: 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011 - Proceedings, p 6280-6282, 2011, 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011 - Proceedings; Language: Chine; ISBN-13: 9781424480395; DOI: 10.1109/ICEICE.2011.5777145; Article number: 5777145; Conference: 2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011; Sponsor: IEEE Beijing Section ED Chapter; Jiangsu University; Publisher: IEEE Computer Society

Author affiliation:

Abstract: As for the materials shortage for making exhaust value, which can't meet the demand for the development of the engine, this paper develops that the prent exhaust valve can be made of 40Cr steel strengthened by spraying. Its possibility is studied from the metal intensity and so on. The comparing test shows that the life of exhaust valve made of 40Cr steel can be incread four times than before. © 2011 IEEE. (5 refs.)

Main Heading: Automobile materials

Controlled terms: Chromium

Uncontrolled terms: 40Cr - 40Cr steel - Alternative materials - Automobile exhaust - Exhaust valves

Classification Code: 543.1 Chromium and Alloys - 662.3 Automobile and Smaller Vehicle Materials

Application of prestresd concrete box girder with steel plate and concrete composite strengthening
Yuan, Zhuoya1; Shi, Xiongwei1, 2; Feng, Wei1; Ke, Liangliang1; Chen, Li1 Source: Advanced Materials Rearch, v 368-373, p 795-802, 2012, Advances in Civil Engineering and Architecture Innovation; ISSN: 10226680; ISBN-13: 9783037852781; DOI: 10.4028/www.scientific/AMR.368-373.795; Conference: 4th International Conference on Technology of Architecture and Structure, ICTAS 2011, September 22, 2011 - September 24, 2011; Publisher: Trans Tech Publications

Author affiliation:

Abstract: In this paper, a formulation for calculating ultimate bending capacity was created. A nonlinear finite element model was established using ANSYS with right material parameters for prestresd concrete box girder with steel plate and concrete composite strengthening (SPCCS). A comparison was made between analysis results and function formula data, and results show that the numerical result s of nonlinear static analysis are in good agreement with the formula results. Effect of SPCCS and steel plate strengthening was compared, and the results show that SPCCS does more effective. (13 refs.)

Main Heading: Plates (structural components)

Controlled terms: Box girder bridges - Civil engineering - Concrete beams and girders - Finite element method - Prestresd concrete - Strengthening (metal)

Uncontrolled terms: Bending capacity - Bridge engineering - Composite strengthening - Field test - Finite Element

Classification Code: 401.1 Bridges - 408.2 Structural Members and Shapes - 409 Civil Engineering, General - 412 Concrete - 537.1 Heat Treatment Process - 921.6 Numerical Methods