Answered: TABLE P10.22 Load (N) Deflection (mm)…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

A wood specimen was subjected to bending until failure by applying a load in
the middle of its span. The specimen has a cross section of 25 mm * 25 mm
(actual dimensions) and a span of 350 mm between the simple supports. The
load and the deflection in the middle of the span were recorded as shown in
Table P10.22.
a. Using a computer spreadsheet program, plot the load–deflection
relationship.
b. Plot the proportional limit on the graph.
c. Calculate the modulus of rupture (flexure strength).

TABLE P10.22
Load (N)
Deflection (mm)
36
3.78
71
5.77
125
7.49
267
9.27
494
10.3
694
11.1
881
11.9
1081
12.8
1272
13.6
1459
14.8
1624
15.6

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