First Edition CHAPTER 1 3 Statics and Mechanics

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First Edition CHAPTER 1 3 Statics and Mechanics of Materials 보와 박벽부재의 전단응력 Ferdinand

First Edition CHAPTER 1 3 Statics and Mechanics of Materials 보와 박벽부재의 전단응력 Ferdinand P. Beer E. Russell Johnston, Jr. John T. De. Wolf (Shearing Stresses in Beams and Thin-Walled Members) David M. Mazurek © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved.

First Edition Statics and Mechanics of Materials 보요소의 수평면에 작용하는 전단력 • 등(等)단면보에서 •

First Edition Statics and Mechanics of Materials 보요소의 수평면에 작용하는 전단력 • 등(等)단면보에서 • 보요소의 평형조건에서 (13. 3) 그림 13. 4 • 여기서 그림 13. 5 • 그리고 (13. 4) 그림 13. 6 © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 4

First Edition Statics and Mechanics of Materials 예제 13. 2 풀이: • 전단응력에 대한

First Edition Statics and Mechanics of Materials 예제 13. 2 풀이: • 전단응력에 대한 설계는 문제 12. 7에서 목재 보의 허용전 단 응력 ��＝ 0. 250 ksi일 때, 전단응 력에 대한 설계가 적절한지 확인 하시오. © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 10

First Edition Statics and Mechanics of Materials 예제 13. 3 풀이: • 단면검토 문제

First Edition Statics and Mechanics of Materials 예제 13. 3 풀이: • 단면검토 문제 12. 8에서 강재 보의 허용전단 응력 � ＝ 90 MPa일 때, 전단응력에 대한 설계에서 문제에서 구한 W 360× 32. 9의 단면이 적절한지 확 인하시오. © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 11

First Edition Statics and Mechanics of Materials 문제 13. 1 풀이: • 단면 n-n에서의

First Edition Statics and Mechanics of Materials 문제 13. 1 풀이: • 단면 n-n에서의 수직전단 © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 13

First Edition Statics and Mechanics of Materials 문제 13. 1 • 접착부 a에서의 전단응력

First Edition Statics and Mechanics of Materials 문제 13. 1 • 접착부 a에서의 전단응력 • 접착부 b에서의 전단응력 © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 14

First Edition Statics and Mechanics of Materials 문제 13. 2 풀이: 전단력도, 휨모멘트도를 그리고

First Edition Statics and Mechanics of Materials 문제 13. 2 풀이: 전단력도, 휨모멘트도를 그리고 각 각의 최대값을 구한다. © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 16

First Edition Statics and Mechanics of Materials 박벽부재의 전단응력 N N+d. N © 2011

First Edition Statics and Mechanics of Materials 박벽부재의 전단응력 N N+d. N © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 – 22 -1

First Edition Statics and Mechanics of Materials 문제 13. 4 풀이: • a점에서의 수평

First Edition Statics and Mechanics of Materials 문제 13. 4 풀이: • a점에서의 수평 전단응력을 구한 다. W 10× 68에 그림과 같이 0. 75× 12 in. 의 판이 필렛 용접되었다고 가정하고, 문 제 13. 3을 다시 푸시오. © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 25

First Edition Statics and Mechanics of Materials 문제 13. 4 • 합성보의 단면 2차모멘트는

First Edition Statics and Mechanics of Materials 문제 13. 4 • 합성보의 단면 2차모멘트는 • a점에서의 수평 전단응력 © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 26

First Edition Statics and Mechanics of Materials 문제 13. 5 • 도심축에 대한 단면

First Edition Statics and Mechanics of Materials 문제 13. 5 • 도심축에 대한 단면 2차모멘트 © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 28

First Edition Statics and Mechanics of Materials 문제 13. 5 ㆍ ㆍ © 2011

First Edition Statics and Mechanics of Materials 문제 13. 5 ㆍ ㆍ © 2011 The Mc. Graw-Hill Companies, Inc. All rights reserved. 13 - 30

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