answer key to stress homework 1

answer key to stress homework 1 - GEOL 3071: Structural...

Info iconThis preview shows page 1. Sign up to view the full content.

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

Unformatted text preview: GEOL 3071: Structural Geology Stress Homework 1 1. What is the lithostatic pressure (in MPa) at 5 km depth in the continental crust? [Necessary information: crustal density:::::; .7 g/cm3, acceleration due to gravity is:::::; 2 9.8 2 m/s . Remember to convert units as necessary (e.g., g/cm3 ~ kg/m3), as reviewed in sections 3.2 through 3.4 in your book. HINT: check out Table 3.1 in your book]. P ~ f~~~ ~'lX(lJ? X f,t X Ff)Q1} ::: J3a·3 M~ 2. At 5 km depth in the crustal colu n from question I, the normal stress applied to the east-west trending vertical plan in the north-south direction (i.e., along a horizontal axis trending north-south) is 145 M a.@this point in the crust is experiencing isotropic stress, what is the mean stress? f it is experiencing inhomogeneous stress due to tectonic stress, what is the magnitude of this tectonic stress in the north-south direction? v ~ m~t\ - 17i~\=)X2t/4·r - 3 ;:=136 I~ 1--llip- /Vl,tA. 3. For the diagram show below, force "W" = 3000 N, angle 8 = 30°, and length L = 1 m. Calculate the normal and shear stresses applied to surface A' (give your answers in MPa, use the back of the sheet if necessary. L. $:=- L'~- e:Jg -;- ~. r~I 5> f ~ - I ' ~ rJ Y, l i)-'3 fiAPa. <Or.. - ttfo ~-':J-b )({t?' /01{/4 $ ...
View Full Document

Ask a homework question - tutors are online