ANALYSIS OF ASME CODES FOR FATIGUE OF PRESSURE VESSELS

被引：0

作者：

Farhangdoost, Khalil ^{[1
]}

Hamrahan, Peyman ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Mech Engn, Mashhad, Iran

来源：

PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL 1: CODES AND STANDARDS | 2010年

关键词：

CRACK-GROWTH;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In industries, pressure vessels or in general thick-wall cylinders under internal pressure are important parts and analysis of their applications in various conditions is essential. Therefore, for design of pressure vessels usage of standard Codes like ASME is necessary. Most of cracked or damaged pressure vessels are exposed to cyclic loading. This failure process is fatigue. ASME codes have some codes for analyzing this process. These codes show the conditions and formulas for fatigue analysis. In this paper, a thick wall pressure vessel is analyzed with three cyclic loading regimes. The maximum stress intensity, fatigue life and damage factor are calculated by ASME codes. Then by usage of finite element method, ASME results are compared for fatigue life analysis. Previous investigations show that nozzle connection area of pressure vessels have high stress concentration, and usually crack is propagated from this zone. Thus fatigue analysis is accomplished for nozzle connection of pressure vessel by ASME codes and finite element method. Then nine shape of crack with same crack front size are modeled on the maximum stress zone of the nozzle connection. Then stresses of crack fronts and stress intensity factors of cracks are computed by finite element method with ABAQUS software which is powerful for fracture mechanic analysis. The critical crack which is elliptical prismatic crack virtually is grown. step by step and for each step, stress intensity factor is computed by ABAQUS software. With relation between stress intensity factor and crack size also using Paris formula, fatigue life is computed. This operation is done for two type of crack growth. In first type length and depth of crack are grown and in second type only crack length is grown. Finally, the fatigue life obtained from Paris formula and ASME codes are compared.

引用

页码：137 / 144

页数：8

共 50 条

[21] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Mertiny, Pierre
Ruggles-Wrenn, Marina B.
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, VOL 3: DESIGN AND ANALYSIS, 2012, : 1 - 1
[22] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Bezdikian, Georges
Young, Garry G.
Ballesteros, Antonio
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE (PVP-2011), VOL 7, 2012, : 255 - 255
[23] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Sanwarwalla, Mansoor H.
Gupta, Narendra K.
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE (PVP-2011), VOL 7, 2012, : 277 - 277
[24] Proceedings of the ASME PRESSURE VESSELS AND PIPING CONFERENCE-2010-VOLUME 1 CODES AND STANDARDS INTRODUCTION
Kalnins, Arturs
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE 2010, VOL 1: CODES AND STANDARDS, 2010, : 123 - 123
[25] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Brown, Warren
Koves, William
Krishnamurthy, Sujay
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, VOL 3: DESIGN AND ANALYSIS, 2012, : 69 - 69
[26] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Vlaicu, Dan
Younan, Maher Y. A.
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, VOL 3: DESIGN AND ANALYSIS, 2012, : 935 - 935
[27] 2012 ASME Pressure Vessels and Piping Conference
Shoji, Yasumasa
Cheta, Ayman
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, PVP 2012, VOL 7: OPERATIONS, APPLICATIONS AND COMPONENTS, 2012, : 89 - 89
[28] ASME EVENTS TO FOCUS ON PRESSURE-VESSELS
不详
MATERIALS PERFORMANCE, 1995, 34 (01) : 57 - 57
[29] 2012 ASME Pressure Vessels and Piping Conference
Younan, Maher Y. A.
Fanous, Ihab F. Z.
Vlaicu, Dan
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, PVP 2012, VOL 3, 2012, : 805 - 806
[30] 2011 ASME PRESSURE VESSELS AND PIPING CONFERENCE
Burdett, Barry
Sherry, Andrew
Dennis, Roger
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, PVP 2011, VOL 6, A AND B, 2012, : 1 - 1

← 1 2 3 4 5 →