{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

S_-_Internal_Forces_in_Structural_Member

# S_-_Internal_Forces_in_Structural_Member - INTERNAL FORCES...

This preview shows pages 1–16. Sign up to view the full content.

INTERNAL FORCES INTERNAL FORCES Internal Forces Developed in Structural Internal Forces Developed in Structural Members Members

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
LEARNING OBJECTIVES LEARNING OBJECTIVES Be able to use the method of sections for Be able to use the method of sections for determining internal forces in 2-D load case determining internal forces in 2-D load case
PRE-REQUISITE KNOWLEDGE PRE-REQUISITE KNOWLEDGE Units of measurement Units of measurement Trigonometry concepts Trigonometry concepts Rectangular component concepts Rectangular component concepts Equilibrium of forces in 2-D Equilibrium of forces in 2-D

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
STRESSES AND STRAINS STRESSES AND STRAINS Stress is defined as load divided by the Stress is defined as load divided by the cross-sectional area on which it acts. cross-sectional area on which it acts. Strain is defined as the change in length divided by the original length. Stress = σ = Q/A Strain = ε = ΔL/L
STRESSES AND STRAINS STRESSES AND STRAINS Stress = σ = Q/A Q Q A = πr 2 L ΔL Strain = ε = ΔL/L

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
STRESSES AND STRAINS STRESSES AND STRAINS Stress = σ = Q/A Q Q A = πr 2 L ΔL Strain = ε = ΔL/L
CALCULATION OF INTERNAL FORCES The internal forces developed in the beam at any section such as C can be determined using the following steps:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
CALCULATION OF INTERNAL FORCES Step 1 – Draw FBD of the structure (beam) and calculate the reactions at the support.
CALCULATION OF INTERNAL FORCES Step 2 – Draw FBD of either the left or the right section of the structure (beam), this is similar to the method of sections.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
CALCULATION OF INTERNAL FORCES Step 3 – Calculate the internal forces (shear = V C , Normal = N C and moment = M C ) using the equations of equilibrium
TYPE OF INTERNAL FORCES

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
EXAMPLE 1 - EXAMPLE 1 - Simply Supported Beam Simply Supported Beam 200 lb 5 ft 5 ft x y Determine the internal forces at any section located at x distance from the left support
EXAMPLE 1 EXAMPLE 1 -Simply Supported Beam -Simply Supported Beam Step 1 – Draw FBD and determine the reactions at the supports 200 lb 5 ft 5 ft x y A B 200 lb R AY R BY

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
EXAMPLE 1 - EXAMPLE 1 - Simply Supported Beam Simply Supported Beam ΣM A = 0.0; R BY (10) – (200)(5) = 0.0; R = 100 lb 5 ft 5 ft y 200 lb R AY R BY x A B Determine the reactions at the supports
EXAMPLE 1 –

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 49

S_-_Internal_Forces_in_Structural_Member - INTERNAL FORCES...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online