EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
4th Edition
ISBN: 8220102719569
Author: ZANIEWSKI
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 10, Problem 10.19QP
To determine
Check whether the structural size specimens or small, clear specimens can be tested to determine the
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Collect a variety of samples of wood species used in construction and conduct various tests, such as:-
Tension and compression tests.
if the stress at failure and bending is 7200 PSI for small, perfect samples of a certain species of wood, what is the allowable bending stress for a piece of lumber with defects that are judged to reduce the strength by 40%?
A pine wood specimen was prepared with actual dimensions of 50 mmx50 mm x 250 mm and grain
parallel to its length. The deformation was measured over a gauge length of 200 mm. The specimen
was subjected to compression parallel to the grain failure. The load- deformation results are shown in
table below:
Load (kN)
Deformation (mm)
8.9
0.457
17.8
0.597
26.7
0.724
34.5
0.838
43
0.965
52.9
1.118
62.01
1.27
71.03
1.422
80.1
1.588
89
1.765
99.6
1.956
108
2.159
111.3
2.311
112
2.456
a. Using a computer spreadsheet program, plot the stress-strain relationship.
b. Calculate the modulus of elasticity.
С.
What is the failure stress?
Chapter 10 Solutions
EBK MATERIALS FOR CIVIL AND CONSTRUCTIO
Ch. 10 - What are the two main classes of wood? What is the...Ch. 10 - Prob. 10.2QPCh. 10 - Prob. 10.3QPCh. 10 - Discuss the anisotropic nature of wood. How does...Ch. 10 - Prob. 10.5QPCh. 10 - Prob. 10.6QPCh. 10 - Prob. 10.7QPCh. 10 - Prob. 10.8QPCh. 10 - Prob. 10.9QPCh. 10 - Prob. 10.10QP
Ch. 10 - Prob. 10.11QPCh. 10 - Prob. 10.12QPCh. 10 - Prob. 10.13QPCh. 10 - Prob. 10.14QPCh. 10 - Prob. 10.15QPCh. 10 - Prob. 10.16QPCh. 10 - Prob. 10.17QPCh. 10 - Prob. 10.18QPCh. 10 - Prob. 10.19QPCh. 10 - Prob. 10.20QPCh. 10 - Prob. 10.21QPCh. 10 - Prob. 10.22QPCh. 10 - Prob. 10.23QPCh. 10 - A wood specimen was prepared with actual...Ch. 10 - A pine wood specimen was prepared with actual...Ch. 10 - Prob. 10.26QPCh. 10 - Prob. 10.27QPCh. 10 - Prob. 10.28QPCh. 10 - Prob. 10.29QPCh. 10 - Prob. 10.30QPCh. 10 - Prob. 10.31QPCh. 10 - Prob. 10.32QPCh. 10 - Prob. 10.33QP
Knowledge Booster
Similar questions
- 412/2021. HW:No.2 (The deadline for submitting your homework on Snday 042814). Three steel bars with a diameter of 25 mm and carbon contents of 0.2, 0.5, and 0.8%, respectively. The specimens were subjected to tension until rupture. The load versus deformation results were as shown in Table below If the gauge length is 50 mm, determine the following: a. The tensile stresses and strains for each specimen at each load increase. b. Plot stresses versus strains for all specimens on one graph. c. The modulus of elasticity for each specimen. d. ultimate strength for each specimen. e. The strain at rupture for each specimen. f. the percentage of the total elongation. 3 Specimen No. Carbon Content (%) 1 2 0.2 0.5 0.8 Deformation (mm) Load (kN) 0.00 0. 0. 0. 0.07 133 133 133 0.10 137 191 191 0.15 • 142 196 285 0.50 147 201 324 1.00 140 199 383 2.50 155 236 447 5.00 196 295 491 (Rupture) 7.50 226 336 10.00 241 341 12.50 218 304 (Rupture) 13.75 196 (Rupture) Stress Strain Curve and Explanation…arrow_forwardGive small explanation also.arrow_forwardThe grains of wood in the board make an angle of 20° with the horizontal as shown. The board is subjected to an axial load of P = 300 N. (Figure 1) Part A Determine the normal stress that acts perpendicular to the grains. Express your answer to three significant figures and include the appropriate units. µA Value Units Submit Request Answer Figure < 1 of 1 Part B Determine the shear stress that acts parallel to the grains. Express your answer to three significant figures and include the appropriate units. HA -300 mm 160 mm Ta'y = Value Units 20° 25 mm1 Submit Request Answerarrow_forward
- HW:No.2 (The deadline for submitting your homework on Sandety (404.2014). Three steel bars with a diameter of 25 mm and carbon contents of 0.2, 0.5, and 0.8%, respectively. The specimens were subjected to tension until rupture. The load versus deformation results were as shown in Table below If the gauge length is 50 mm, determine the following: a. The tensile stresses and strains for each specimen at each load increase. b. Plot stresses versus strains for all specimens on one graph. c. The modulus of elasticity for each specimen. d. ultimate strength for each specimen. e. The strain at rupture for each specimen. f. the percentage of the total elongation. 3. Specimen No. Carbon Content (%) 1. 2 0.2 0.5 0.8 Deformation (mm) Load (kN) 0.00 0. 0.07 133 133 133 0.10 137 191 191 0.15 • 142 196 285 0.50 147 201 324 1.00 140 199 383 2.50 155 236 447 5.00 196 295 491 (Rupture) 7.50 226 336 10.00 241 341 12.50 218 304 (Rupture) 13.75 196 (Rupture)arrow_forwardwhy do the surfaces of reinforcing bars have rolled-on deformation?arrow_forwardA pine wood specimen was prepared with actual dimensions of 50 mm × 50 mm x 250 mm and grain parallel to its length. The deformation was meas- ured over a gauge length of 200 mm. The specimen was subjected to compres- sion parallel to the grain to failure. The load-deformation results are as shown in Table P10.25. TABLE P10.25 Load (Kn) Deformation (mm) 8.9 0.457 17.8 0.597 26.7 0.724 35.6 0.838 44.5 0.965 53.4 1.118 62.3 1.270 71.2 1.422 80.1 1.588 89.0 1.765 97.9 1.956 106.8 2.159 111.3 2.311 a. Using a computer spreadsheet program, plot the stress-strain relationship. b. Calculate the modulus of elasticity. c. What is the failure stress?arrow_forward
- Bond identical metal samples with various types of adhesives. After the recommended curing time, test for strength of bond with a tensile testing machine?arrow_forwardThe mechanical properties of wood are in the axial direction (along the fibers) and the transversal direction (perpendicular to the fibers). Explain briefly how it changes.arrow_forwardBased on the discussed defects of wood, which of these do you think acceptable forconstruction? Defend your answerarrow_forward
- The grains of wood in the board make an angle of 20° with the horizontal as shown. The board is subjected to an axial load of P = 250 N . (Figure 1) Part A Determine the normal stress that acts perpendicular to the grains. Express your answer to three significant figures and include the appropriate units. µA Value Units Figure 1 of 1 Submit Request Answer Part B 300 mm Determine the shear stress that acts parallel to the grains. 60 mm Express your answer to three significant figures and include the appropriate units. 20° 25 mm HẢ ? Value Units P Pearsonarrow_forwardThe following data are from a research project. Determine the yield strength, ultimate strength, and ultimate elongation for the two steels shown in the plots. Identify the reinforcement grade for each assuming the chemistry met requirements of the ASTM A706 specification. Complete the table. Steel Yield Strength, ksi Ult. Strength, ksi Stress (ksi) 1 2 120 100- 80- Stress (ksi) 60- 40 20- 0+ 0.00 0.02 0.04 120 100 80 40- 20- 0.06 0.08 0.10 0.12 Strain 0+ 0.00 0.02 0.04 0.06 0.08 Total Elongation, % Steel 1 0.14 0.16 0.18 0.20 Steel 2 0.10 0.12 0.14 0.16 0.18 0.20 Strain ASTM A706 Gradearrow_forwardWhat is cold bending of steel rebars?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning
Construction Materials, Methods and Techniques (M...Civil EngineeringISBN:9781305086272Author:William P. Spence, Eva KultermannPublisher:Cengage Learning
Materials Science And Engineering Properties
Civil Engineering
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Cengage Learning
Construction Materials, Methods and Techniques (M...
Civil Engineering
ISBN:9781305086272
Author:William P. Spence, Eva Kultermann
Publisher:Cengage Learning