14:125:208: Introduction to Biomechanics
Homework Assignment #7
Spring 2012
Due 4/12/12
Problem 1: From Ozkaya and Nordin, do Problem 8.3.
Problem 2: From Ozkaya and Nordin, do Problem 8.4.
In addition to (a)-(e), add the following:
(f)
find the maximum c
14:125:208: Introduction to Biomechanics
Homework Assignment #6
Spring 2012
Due 3/26/12
Problem 1:
Above two identical beams are subjected to either 3pt bending (top) or 4pt bending
(bottom). Both beams are subjected to a net load of 2P. To the right is a
H
dh b
L
4m USPPUB h H
4+
Ell
*IIb
L
Above two identical beams are subjected to either 3pt bending cfw_top or 4pt bending
cfw_bottom. Eioth beams are subjected to a net load of 2P. To the right is a cross section of
the beam. it is a hollow beam with a wa
Shear and Torsion
14:125:208
Introduction to Biomechanics
Shearing Stress and Strain
When we apply a shear stress we get angular
deformation
When you plot shear stress (t) vs. shear strain (g)
you obtain =
Hookes Law for shearing stress and strain
G
125:208 Introduction to Biomechanics
Instructor:
Professor Jeffrey Zahn
Assistant Professor of Biomedical Engineering
599 Taylor Road (BME Building)
Room 311
732-445-4500 x6311
[email protected]
Spring 2012
Teaching Assistant:
Jeremy Scheff
599 Taylo
,/
,./
1332;
Figure 1.10
h
8. A person bends over and lifts a 200 N weight as shown in Figure 1.8 (a)
below, with the back in the horizontal position. The back muscle, attached at
a point two thirds up the spine, maintains the position of the back, where
Short Answer (5 points each)
Only answer 6 questions, if you answer more than 6 I will only grade the first 6 questions.
4. Draw the shape of the shear and moment diagrams of the following loading situation.
5. If the pictured block has a Poissons ratio o
14:125:208: Introduction to Biomechanics
Homework Assignment #4
Spring 2008
Due 2/21/08
Problem 4: (Static Analysis of a Handplant)*
In skateboarding (or snowboarding) one of the oldest and most impressive tricks is called a handplant. A
skateboarder will
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Homework 4
An actor is rehearsing for the new Conan movie. He is using a sword that weighs 6N. He holds the
sword upright at the center of mass of his hands. What is external torque on the glenohumeral joint
(Force on the deltoid tendon)? What are the rea
Bending Under Distributed Loads
and the Double Integration Method
Introduction to Biomechanics
14:125:208
Distributed Loads
Lets look at a distributed load
RA=RB=1/2 L
For the shear diagram @A, VA=RA=1/2 L
Find the shear V at any distance x away from
CHAPTER
FOUR
1. INTRODUCTION
In the preceding chapters we analyzed the stresses and strains in
'smatic members subjected to axial loads and to twisting couples. We
. lnow consider the analysis of prismatic members subjected to equal
- opposite couples M
Viscoelastic Models
The phenomenological theory of linear viscoelasticity developed in Chapter
2 is completely independent of the existence of models. It is desirable to
consider the representation of linear viscoelastic processes by certain model
systems
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buck-Ha IS 3'00?er A M
Values AFC Stu(A0
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Home > Chapter 3 > Multiple Choice Quiz
Course-wide Content
Study Partner
Case Studies
Course Tools
Lab Exercises
Animations
GetBodySmart
Online Tutor
Multiple Choice Quiz
(See related pages)
Results Reporter
Out of 30 questions, you answered 22 correctly
Home > Chapter 6 > Multiple Choice Quiz
Course-wide Content
Study Partner
Case Studies
Course Tools
Lab Exercises
Animations
GetBodySmart
Online Tutor
Multiple Choice Quiz
(See related pages)
Results Reporter
Out of 26 questions, you answered 19 correctly
A human surfactant peptide-elastase inhibitor
construct as a treatment for emphysema
Frank Guarnieria,b,c,1, Jean L. Spencerd,e, Edgar C. Luceyd, Matthew A. Nugentb,d,e, and Phillip J. Stoned
a
Paka Pulmonary Pharmaceuticals, Acton, MA 01720; bDepartment
Exam 3 Review
The exam will focus on:
Blood vessel physiology
Vessel mechanical testing techniques
Pressure vessels
Blood flow
Soft tissue mechanical properties (viscoelasticity)
Principal Stresses
Blood Vessel Physiology
What are the different la
Medium Answer (10 points each)
Only answer 3 questions, if you answer more than 3 I will only grade the first 3 questions.
1. In the following section provide the missing information (name of the model, the type of test,
draw the plot for the test). Label
Transformations of Stress and Strain
462
Fig. 7.43
we
mm
53 RP
@ka _
7.9. STRESSES IN THIN-WALLED PRESSURE VESSELS
Thinwalled pressure vessels provide an important application of .
analysis of plane stress. Since their walls offer little resistance
2. (35 pts) (25min)
You are asked to analyze the
forces at the knee joint during
limbo. I have provided views in
the x-y and y-z planes, and a
close-up of the patella
tendon/tibio-femoral joint.
Assume that the person is slowly
creeping his way under the
INTRODUCTIONCONCEPT OF STRESS
30 kN
Fig. 1.1
Fig. 1.4
1.2. FORCES AND STRESSES
Consider the structure shown in Fig. 1.1, consisting ofa boom AB
and a rod BC. We propose to determine whether a 30kN load may
safely be supported at B by this structur
i
1
,
\B T 1' C
TQE; B
Fig. 3.1
(a)
TORSION
3.1 . INTRODUCTION
In the two preceding chapters, we discussed the stresses and strains
in structural members subjected to axial loads, i.e., to forces directed
along the axis of the member. In this chapter, w
Exam 2 Review
This section of the class focuses on:
Bone physiology
Different types of bone
Woven
Plexiform
Lamellar
Bone: Woven Bone
Woven bone
A disorganized form of
bone that is associated
with youth (under the age
of 5) or damage due to
trauma
Solving Problems
Introduction to Biomechanics
14:125:208
Center of Mass
Center of Mass
If an object of mass m is suspended from a cord
attached to any point on the object the resultant
force (weight) will go through a single point no
matter where the ob
Tissue Mechanics: Basic
Tissue Modeling
Fundamentals of Tissue Structure,
Function, and Replacement
BMES 5984
Viscoelasticity
We have been talking about viscoelasticity
throughout the course
Today we will discuss it in greater detail
Definition
Models
Matrices, Vectors, and Moments
Introduction to Biomaterials
14:125:208
Matrices
You can multiply two matrices if the number
of columns in the first matrix equals the
number of rows in the second matrix. If not, it
is undefined
The product matrix's dimen
The Elbow and Anthropometric
Data
Introduction to Biomechanics
Anatomical Terminology
Anatomical Position
Standing up straight
Arms by side of body
Palms facing forward
Legs together
Toes straight ahead
Anatomical Terminology
The body can be split
up al