8.1. Introduction
In the class of axisymmerically loaded members, the fundamental problem may be defined in
terms of the radial c oordinate. There are numerous practical situations in whic h the
distribution of stress manifests symmetry about an axis. Exa
MAE 3250
Project 3 Report
Xinting Lan
xl278
Tues., 1:25 pm
Section 1
The material Aluminum 6061-t6 was created in ANSYS using the 10,000 ksi youngs modulus and 0.33
poissons ratio used in past assignments. The values for density and yield used in hand cal
(O
Gunmen. UNIVERSITY; MAE 3250, FALL 2014 DUE: SEPTEMBER 1 1. 2014
Homework 1
Problems Ll, 1.4.1.6.}.7. 13,120,123
PROBLEM 1.1
A cube of material with edges of length I is given a coordinate system parallel to its edges with the
origin at the lower left
MAE 3250 Analysis of Mechanical and Aerospace Structures
. Prelim Information
Fall 2014
Time: 11:40-12:55 Thursday, Oct. 09, 2014
Place: Philips 101
Notes:
I Closed book and no notes. One sheet of equations will be provided. A sample equation
sheet was po
B.1. Principal Stresses
There are many methods in common usage for solving a cubic equation. A simple
approach for dealing with Eq. (1.33) is to find one root, say 1, by plotting it
( as abscissa) or by trial and error. The cubic equation is then factored
MAE 3250
Analysis of Mechanical and Aerospace Structures
Fall 2012
Homework #2, Due: 11:25am, Thursday, Sept. 20
1. Read the online tutorial ANSYS 12 Tensile Bar Problem Specification at
https:/confluence.cornell.edu/display/SIMULATION/ANSYS+12+-+Tensile+
MAE 3250
Analysis of Mechanical and Aerospace Structures
Fall 2012
HW #8, Due: 5pm, Tuesday, November 27th
1. Two aluminum bars and one iron bar are attached to a rigid support on the left end (fixed)
and a granite bar on the right (free end). Each bar ha
MAE 3250
Analysis of Mechanical and Aerospace Structures
Fall 2011
HW# 2, Due: 11:15 am, Thursday, Sept. 15
ANSWERS
1. No answer provided
2. Proof
3. Textbook: 1.20
a.
6
0
4
0
0
0
4
0 ksi
0
b.
24
0 ksi or
8
2, 0, 8, ksi
24
8
/
ksi
c.
d. Because this
MAE3250 Analysis of Mechanical and Aerospace Structures
Fall 2012
HW 7
Due: 5p Thursday, Nov. 15th
Go through the bike crank tutorial at
https:/confluence.cornell.edu/x/MwZoC
This tutorial shows you how to calculate the strain value
MAE 3250
Analysis of Mechanical and Aerospace Structures
Fall 2012
HW #8, Due: 5pm, Tuesday, November 27th
Assignment: thermal problem, textbook 4.17, 4.18, 4.19
Answers
1. Al = - 3996 psi, Fe = 7992 psi
2. Textbook 4.17
a. -186.7 MPa
3. Textbook 4.18
a.
MAE 3250
Analysis of Mechanical and Aerospace Structures
Fall 2012
HW#4, Due: 11:25 am, Thursday, Oct. 4
Assignment: Textbook 3.10, 3.11, 3.12, 3.16, 3.18
Answers:
1. Textbook 3.10
2
xyz yz
y z
a. xyz yz
2 xz
2
xz xy
xy
2
V
19 x 103
b.
V0
c. z 336 MPa
C.2. Moments of Inertia
We now consider the second moment or moment of inertia of an area (a relative
measure of the manner in which the area is distributed about any axis of
interest). The moments of inertia of a plane area Awith respect to
the x and y a
C.1. Centroid
This appendix is concerned with the geometric properties of cross sections of a
member. These plane area characteristics have special significance in various
relationships governing stress and deflection of beams, columns, and shafts.
Geomet
12.1. Introduction
Thus far, we have considered loadings that cause the material of a member to behave
elastic ally. We are now concern with the behavior of mac hine and struc tural c omponents
when stresses exc eed the proportional limit. In such cases i
13.1. Introduction
This c hapter is subdivided into two parts. In Part A, we develop the governing equations
and methods of solution of deflection for rectangular and c irc ular plates. Applications of the
energy and finite element methods for computation
7.1. Introduction
This c hapter is subdivided into two parts. The finite difference method is treated briefly
first. Then, the most commonly employed numeric al technique, the finite element method, is
discussed. We shall apply both approaches to the solu
11.1. Introduction
We have up to now dealt primarily with the prediction of stress and deformation in structural
elements subjec t to various load configurations. Failure c riteria have been based on a
number of theories relying on the attainment of a par
10.1. Introduction
As an alternative to the methods based on differential equations as outlined in Section 3.1,
the analysis of stress and deformation c an be ac complished through the use of energy
methods. The latter are predicated on the fac t that the
9.1. Introduction
In the problems involving beams previously considered, support was provided at a number of
discrete loc ations, and the beam was usually assumed to suffer no deflection at these
points of support. We now explore the case of a prismatic b
5.1. Introduction
In this c hapter we are concerned with the bending of straight as well as curved beams
that is, structural elements possessing one dimension signific antly greater than the other
two, usually loaded in a direction normal to the longitudi
3.1. Introduction
As pointed out in Section 1.1, the approaches in widespread use for determining the
influence of applied loads on elastic bodies are the mechanic s of materials or elementary
theory (also known as tec hnic al theory) and the theory of el
1.1. Introduction
There are two major parts to this c hapter. Review of some important fundamentals of static s and
mec hanics of solids, the concept of stress, modes of load transmission, general sign c onvention for
stress and forc e resultants that wil