4. a small country bridge is made of for an AISI4340 steel with S-N curve behavior below a. What is its endurance limit b. How long will it last without failure if it takes on an average 10 pickup truck (10 tons weight) per hour(each car applies a single cycle of stress amplitude of 600 MPa. c. Due to opening of an nearby industry the bridge needs to be allow for additional 1 semi trailer ((20 tons weight) per hour) how long is the new design life of the bridge with additional load

4. a small country bridge is made of for an AISI4340 steel with S-N curve behavior below a. What is its endurance limit b. How long will it last without failure if it takes on an average 10 pickup truck (10 tons weight) per hour(each car applies a single cycle of stress amplitude of 600 MPa. c. Due to opening of an nearby industry the bridge needs to be allow for additional 1 semi trailer ((20 tons weight) per hour) how long is the new design life of the bridge with additional load

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 from Subject Mechanics of Deformable Solids.
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Current Attempt in Progress A simply supported timber beam with length L = 3 m carries a uniformly distributed load w = 11 kN/m. Determine the magnitude of the maximum compression bending stress that occurs in the beam at any location within the 3-m span length. 300 mm L 100 mm O 7.47 MPa O 5.18 MPa O 9.74 MPa O 8.25 MPa O 5.92 MPa Save for Later Attempts: 0 of 1 used Submit Answer