BIOL 315: BIOMECHANICS

Spring 2004

 

Meeting Times:
Lecture: Monday, Wednesday, Friday  10:00 - 10:50 (KH 210)
Lab: Tuesday 2:00-4:50 (KH 420)  


David J. Coughlin, Ph.D.
Phone: 610-499-4025 
Office: KIRK 441 
Email: coughlin@pop1.science.widener.edu 
Web-Page: http://www.science.widener.edu/~coughlin 

Office Hours: M 11-12, Tu 10-11, W 11-1, F 11-12


Grading
Laboratory Schedule
Lecture Schedule

 

COURSE OBJECTIVES

Biomechanics is the study of the physical design of biological organisms. This course examines the diversity of form in members of all kingdoms of life in the context of function in the physical world. Physics and materials analysis concepts relevant to biomechanics will be explored. Several specific areas will be examined in detail, such as locomotion at low Reynolds number, the mechanics of flight,  biomechanical design of trees, lift-based versus drag-based swimming and the arthropod exoskeleton.

 

 

BOOK

Vogel, Steven. 2003.    Comparative Biomechanics:  Life's Physical World.    Princeton University Press, Princeton, NJ.  582 pgs.


Lab Materials Prepared by Instructor.

COURSE REQUIREMENTS

Almost weekly homework will be assigned based on lecture work and textbook reading.  A midterm and final exam will be given based on material presented in lecture. Students will make a lecture presentation on a current topic in biomechanics, as researched in the literature.  Laboratory reports will be due weekly during the first half of the semester.  Summary report (both oral and written) will be given on the team laboratory projects carried out in the second half of the semester.

 

LABORATORY

The first half of the laboratory (7 weeks) will consist of laboratory exercises that introduce the student to materials analysis and the measurement of biomechanical data, such as the properties of fluid and solids, drag and lift of objects in flow.  The second half of the semester will consist of solo or team laboratory projects in some area of biomechanics, such as analysis of tensile properties of mammalian connective tissues, experimental measurement of lift and drag of organisms that live in flow, biomechanical design and human locomotion, and design of novel morphologies based on evolutionary change of existing biological organisms


GRADING


Point Value
Midterm Exam
150
Final Exam
200
Homework (Lecture and Lab)
~330
Laboratory Project - Individual Papers
100
Laboratory Project - Group (or Individual) Presentations
50
Lecture Presentation
50
Class Participation
20
Total:
~900

The grades for the semester will follow >90% = A, >80% = B, >70% = C, >60% = D, and < 60% = F.  In addition, a plus/minus grades will be used for the final grade.  Please note that academic honesty is expected at all times. The Science Division strictly enforces the University’s policy on cheating and other forms of academic fraud.  The student handbook contains a detailed section on the definitions and consequences of academic fraud (Section G of the chapter on Academic Policy).  For missed exams, a make-up will only be given for extenuating circumstances that are properly documented by the Assistant Provost.   Attendance of both laboratory and lecture are required.  Five or more un-excused absences during the semester (total for both lab and lecture) will result a drop in the final grade by one letter grade.  More un-excused absences will result in further letter grade drops.  Details of the Science Division grievance procedure can be obtained in the Science Division Office.

 

 

LABORATORY SCHEDULE (subject to change)

Jan 13 Tu

A Simple Biomechanics Study

Jan  20  Tu
Center of Gravity and Locomotion (read Vogel pages 81-84)
Jan 27 Tu
Temperature and Locomotory Performance

Feb 3-10

Reynolds Number, Drag Coefficient, Flow Visualization

Feb 17
Levers in Action: Simple Levers and Four-Bar Linkage Systems in Fish Heads

Feb 24

Properties of Materials: Tensile and Compressive Strengths

Spring Break

March - April  
Group Research Projects.  Topics to be discussed in class.

Apr 27

Group Presentations for Research Projects

         


LECTURE SCHEDULE (tentative)

Date Topic                                                                                 Vogel Chapter
Jan 12 M
Introduction to Biomechanics
1
    14 W
Newtonian Physics
2
    16 F
           and Biomechanical Variables
    19 M
Martin Luther King, Jr., Federal Holiday - No Class
              Please Participate in Community Service (5 extra credit points) 

    21 W
Dimensional Analysis, Rates and Gradients  4
    23 F
Properties of Fluids: Air and Water 5
    26 M
    cont'd 
    28 W
Viscosity, Flow and Reynolds Number  6
    30 F
    cont'd

Feb 2 M
Flow, Pressure and Bernoulli
7
    4 W     cont'd
    6 F
Life at Low Re 8 (pgs. 165-175), 11
    9 M
Pipe Flow and Circulatory Systems   9-10
    11 W
    cont'd
    13 F
Lift and Flight
12
    16 M
    cont'd
    18 W
Solid Materials and Their Properties
15
    20 F
    cont'd

    23 M
Review 

    25 W
Midterm Part I:  The Essays

    27 F
Midterm Part II: The Math

Mar 1-5
Spring Break  - No Class

Mar 8 M
Material Properties and Biological Applications, Including Various Composites
16, Handout
    10 W
    cont'd

    12 F     cont'd

    15 M
Viscoelasticity
17
    17 W
Allometry, Isometry and the Implications of Size
3
    19 F
    cont'd
    22 M
Beams, Columns and Arranging Material for Biological Structures    18-19
    24 W
    cont'd

    26 F
    cont'd
    29 M
Student Talks   

    31 W Student Talks  

Apr 2 F
Student Talks 

    5 M
Hydrostatic Organs 20
    7 W
Putting Together Whole Organisms 21
    9 F
Spring Holiday - No Class   

    12 M
Lot's about locomotion - Thrust, Flying and Swimming 13 (maybe some 14)
    14 W
  con'td

    16 F
Projects Day - No Class

    19 M
Muscle Use in Locomotion 22
    21 W
Putting it Together - Fishes Swimming and Birds Flying Handout
    23 F
Getting Around on Land 24
    26 M
Muscle Use in Running Mammals Handout
    28 W
Review

TBA
FINAL EXAM